From: Riku Voipio <riku.voipio@iki.fi>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH] linux-user: support private futexes
Date: Tue, 5 May 2009 16:29:37 +0300 [thread overview]
Message-ID: <20090505132937.GA29336@kos.to> (raw)
Implemented the same way as in the kernel. Needed by newer glibc (2.9?)
based userlands.
From: Martin Mohring <martin.mohring@opensuse.org>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
---
linux-user/syscall.c | 14 +++++++++-----
1 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 77fb7f6..1096bb1 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3925,7 +3925,11 @@ static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
/* ??? We assume FUTEX_* constants are the same on both host
and target. */
+#ifdef FUTEX_CMD_MASK
+ switch ((op&FUTEX_CMD_MASK)) {
+#else
switch (op) {
+#endif
case FUTEX_WAIT:
if (timeout) {
pts = &ts;
@@ -3933,17 +3937,17 @@ static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
} else {
pts = NULL;
}
- return get_errno(sys_futex(g2h(uaddr), FUTEX_WAIT, tswap32(val),
+ return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
pts, NULL, 0));
case FUTEX_WAKE:
- return get_errno(sys_futex(g2h(uaddr), FUTEX_WAKE, val, NULL, NULL, 0));
+ return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
case FUTEX_FD:
- return get_errno(sys_futex(g2h(uaddr), FUTEX_FD, val, NULL, NULL, 0));
+ return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
case FUTEX_REQUEUE:
- return get_errno(sys_futex(g2h(uaddr), FUTEX_REQUEUE, val,
+ return get_errno(sys_futex(g2h(uaddr), op, val,
NULL, g2h(uaddr2), 0));
case FUTEX_CMP_REQUEUE:
- return get_errno(sys_futex(g2h(uaddr), FUTEX_CMP_REQUEUE, val,
+ return get_errno(sys_futex(g2h(uaddr), op, val,
NULL, g2h(uaddr2), tswap32(val3)));
default:
return -TARGET_ENOSYS;
--
1.6.2.1
reply other threads:[~2009-05-05 13:29 UTC|newest]
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